The park is located in the Eastern Cross Timbers, a narrow strip of wooded terrain bordering the Blackland Prairies of north central Texas. Geologically, the region is part of the Woodbine Formation, an Upper Cretaceous deposit (formed about 65 million years ago) consisting mostly of sandstone, with localized layers of shales and clay.
A partial plant list includes: post oak, blackjack oak, eastern red cedar, honey locust, honey mesquite, rough leaf dogwood, black hickory, black walnut, red bud, chinaberry, hackberry, bois darc, red mulberry, eastern cottonwood, black willow, western soapberry, gum bumelia, Hercules-club, hawthorne, persimmon, cedar elm, winged elm, American elm, pecan, box elder, American sycamore, green ash, sumac holly, coralberry, wild plum, blackberry, mustang grape, greenbrier, snailseed, ground cherry, horse nettle, milkweed, prickly pear, honeysuckle, sunflower, goldenrod, bull nettle, pokeweed, buckwheat, knotweed, Johnson grass, ragweed, Texas wintergrass, switch grass, Indian grass and bluestem grasses.
Animals found within the park include: opossums, Mexican free-tailed bats, brown bats, beavers, plains pocket gophers, eastern gray squirrels, fox squirrels, eastern cottontails, white-tailed deer, nine-banded armadillos, raccoons, minks, striped skunks, gray foxes, coyotes, bobcats, lizards, rodents, snakes (such as the copperhead, cottonmouth, bullsnake, rat snake and ribbon snake), insects, spiders, frogs, turtles, sunfish, white bass, largemouth bass, spotted gar, catfish, butterflies and dragonflies. Bird species include the greater roadrunner, painted bunting, scissor-tailed flycatcher, great blue heron, American white pelican, eastern screech owl and great horned owl, as well as several species of hawks, woodpeckers and ducks. Wintering bald eagles may occasionally be encountered around the lake as well.